Cal. Gov. Code § 64813

Subject to Section 4 of Article XIIIA of the California Constitution, either the designated elections official or the board may act by resolution or by ordinance to place a measure on the ballot seeking voter approval of a special documentary transfer tax pursuant to Part 6.7 (commencing with Section 11901) of Division 2 of the Revenue and Taxation Code, provided, however, that the agency’s tax shall be in addition to any city or county tax under that part and not subject to the limit provided in Section 11911 of the Revenue and Taxation Code.